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. Author manuscript; available in PMC: 2011 Jul 20.
Published in final edited form as: Sens Actuators B Chem. 2011 Jul 20;155(2):539–544. doi: 10.1016/j.snb.2011.01.003

Table 1.

Frequency decreases after a single ion injection (100 µl)

Ion Concentration (mg/L) ΔF (Hz)
Cu2+ 150 19 ± 2
Cr3+ 249 119 ± 7
Pb2+ 338 161 ± 5
Cd2+ 376 207 ± 18